1)what is a good asking price for a d40 kit (comes w/ 18-55 lense, camera body, charger, comp. cable, pretty much everything that it normally comes with
2) what is a good step up from the d40? i took a few semesters of B@W photography and have been shooting with this all year. i hear the d80 is nice. will any cannon cameras work with my nikon af-s lense (i am assuming no)?